Prolonged stress causes the immune system to weaken and are more like to get sick.
Answer:
without choices to choose from, I'd say vaccinations....also herd immunity, and early health screenings.
Blood in the pulmonary vein is oxygen rich, while in all of the other veins, it is oxygen poor.
Hope this helps... mark as Brainliest plz
Answer:
Anxiety is a normal reaction to stress and can be beneficial in some situations. It can alert us to dangers and help us prepare and pay attention. Anxiety disorders differ from normal feelings of nervousness or anxiousness, and involve excessive fear or anxiety. Anxiety disorders are the most common of mental disorders and affect nearly 30 percent of adults at some point in their lives. . But anxiety disorders are treatable and a number of effective treatments are available. Treatment helps most people lead normal productive lives.
Explanation:
hope that helped :)
